Probing extra dimensions through the invisible Higgs decay
Abstract
In the large extra dimension model of Arkani-Hamed, Dimopoulos and Dvali the presence of an interaction between the Ricci scalar curvature and the Higgs doublet of the Standard Model makes a light Higgs boson observable at LHC at the 5 sigma level through the fusion process pp-> W*W* +X -> Higgs, graviscalars +X -> invisible+X for the portion of the Higgs-graviscalar mixing (xi) and effective Planck mass (M_D) parameter space where channels relying on visible Higgs decays fail to achieve a 5 sigma signal. However even if the LHC has a good chance of seeing a signal, it will not be able to determine the parameters of the model with any real precision. This goal can be reached by adding the following LC measurements: gamma+missing E_T, Higgs production and decay in the visible SM-like final states and in the invisible final state.
Cite
@article{arxiv.hep-ph/0503216,
title = {Probing extra dimensions through the invisible Higgs decay},
author = {Daniele Dominici},
journal= {arXiv preprint arXiv:hep-ph/0503216},
year = {2016}
}
Comments
8 pages, 12 eps figures, Proceedings of the workshop Physics at LHC, 13-17 July 2004, Vienna, Austria